| 张晗,王立斌,张霞,赵瑞铎,黄姝姝.g-C3N4/PAN+TPU复合纳米纤维膜的制备及其处理印染有机污染物性能研究[J].分子催化,2025,39(2):129-140 |
| g-C3N4/PAN+TPU复合纳米纤维膜的制备及其处理印染有机污染物性能研究 |
| Preparation of g-C3N4/PAN+TPU Composite Nanofiber Membrane and Its Performance in Treating Organic Pollutants from Printing and Dyeing |
| 投稿时间：2024-10-12 修订日期：2025-01-06 |
| DOI：10.16084/j.issn1001-3555.2025.02.004 |
| 中文关键词: 氮化碳 静电纺丝 纳米纤维膜 光催化 |
| 英文关键词:carbon nitride electrospinning nanofiber membrane photocatalysis |
| 基金项目:内蒙古自治区自然科学基金项目(No. 2021BS02004); 内蒙古工业大学博士科研启动项目(No. BS2020035)[Natural Science Foundation of Inner Mongolia Autonomous Region(No. 2021BS02004); Doctoral Research Project of Inner Mongolia University of Technology (No. BS2020035)]. |
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| 中文摘要: |
| 以聚丙烯腈(PAN)和热塑性聚氨酯(TPU)为载体, g-C3N4为负载材料, 采用静电纺丝技术制备了一系列纳米纤维膜, 以获得在处理印染有机废水方面具有较好过滤和催化性能的材料. 通过改变g-C3N4浓度、纺丝电压、纺丝液流速等参数探究最佳纺丝工艺. 扫描电镜、傅里叶红外光谱等分析结果显示, 不同纺丝工艺对纳米纤维膜的形貌、结构、微观尺寸等具有一定影响. 实验结果表明, g-C3N4浓度0.6%、载体PAN/TPU、纺丝电压25 kV、纺丝液流速2.0 mL·h-1条件下制备的纳米纤维膜具有最佳的可见光去除活性艳红效率, 可达83.12%. 同时, 机理实验结果显示在催化去除活性艳红过程中h+、·O2-和·OH是主要的活性物种. |
| 英文摘要: |
| In order to generate materials with good filtration and catalytic capabilities in the treatment of printing and dyeing organic wastewater, a series of nanofiber membranes were made by electrospinning technology using PAN and TPU as carrier and g-C3N4 as loading material. By adjusting the g-C3N4 concentration, spinning voltage, and spinning liquid flow rate, the ideal spinning procedure was examined. The shape, structure, and micro-size of nanofiber films are all influenced by the distinct spinning process, as demonstrated by the findings of scanning and Fourier transform infrared spectroscopy (FTIR) studies. The experimental findings demonstrated that the nanofiber membrane exhibited the highest visible light removal efficiency of 83.12% when subjected to the following parameters: 0.6% g-C3N4 concentration, carrier PAN/TPU, spinning voltage 25 kV, and spinning liquid flow rate 2.0 mL·h-1. Simultaneously, mechanism investigations revealed that the primary active species in the catalytic elimination of reactive brilliant red were h+, $\text{·}{\mathrm{O}}_{2}^{-} $, and ·OH. |
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